This happened in my neighborhood, and I've met the "perpetrator." She's a sweet person, and I'm convinced she was absolutely acting in the best interests of her child as she saw it. Kids as young as elementary school age in our neighborhood frequently go to the various ponds for fishing, watching the wildlife or even sailing remote control boats. Five years old without a buddy might be on the younger end, but it's hardly criminally negligent. And given the several close calls I've had with elementary & middle school-aged kids on e-bikes and scooters this summer, I hardly think this is even close to the most serious youth safety problem here.